Improvement in ltibricators



i cork.

tinted @saca TIMOTHY HOLLAND,

OF 4NEW YORK,V N. Y.

Lretiers Patent N 99,894, dated February l5, 1870.

IMPROVEMENT IN LUBRICATCRS.

*fwn- The Schedule referred to in these Letters Patent and making partici' the name.

To all whom 'it may concern:

Be a known um I, Tmomf HOLLAND, of al@ Cay, county, and State oi'- N ew York, have invented a new and useful Improvement in Oil-Cups, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing forming part of this specification, and in which- Figure 1 represents an outside elevation of an oilcnp constructed in accordance with my improvement, and

Figure 2 a central vertical section of the same.

Similar letters of reference indicate corresponding parts.

In myf improved oil-cup, as represented in the accompanyingdrawing, the reservoir or cup proper is secured to its place or the stem which carries it by a hollow screw-clamp, provided with an overlapping projection or collar arranged to bear on the inside of the cup, thereby dispensing with the usual and less reliable cemented Vattachment of it o'n the outside.

"It also embraces, as applicable to anoil-cup not exposed to internal pressure, a stopper made up of 'a rigid cap, with a cork orother like tilling secured tothe cap by alscrenwpin that is provided with an internal head, and which serves to compress and expard the cork,to secure its close fit within the mouth ot' the reservoir. Likewise said cup includes a valvular construction of the'stem which carries it, the same being made to form a part or extension of the reservoir, and so that on turning the reservoir the valve is opened or closed, to secure and regulate or shut oii the flow; and in this latteruconuection, the invention embraces a peculiarconstruction ofthe valvular stem by making it of a taper forni at its seat, and with a longitudinal passage down it'terminating in side orilices or outlets; also, in providing it with a reverse screw-thread, so that on turning the reservoir, as iu the act of taking olf the stopper,- it closes the valve.

lIn further description of the improvement- A in the annexed .drawing represents the reservoir,

which may be made of glass or othersuitahle material.

Said reservoiris secured to its stem B by means of a hollow screw-clamp, C, provided withan upper collar, a, arranged to bear through an interposed soft washer 0r packing, l), ou the inside ofthe reservoir, and screwing on the outside into the stem B, in which the lower end of the reservoir may also enter and rest on a. soft or flexible packing, c.

This mode of attachment dispenses with the usual cement joint, and forms a firmer and more reliable union, with every facility fordetacbing the reservoir.

The stopper D is made up in part of a plug, d, of cork or other soft and exible material, but it will snftice here to refer to the same under the term of a This cork is secured to a metal or other rigid outside cap, e, by a. pin, j, provided with a lower head, and after passing through the cork, screwing into the cap, whereby said cork is not only securely attached to the cap, with facility forits removal when requiring to be renewed, but whereby, on screwing up the pin, the cork may be expanded to secure its close fit Within the mouth ofthe reservoir.v

In cases where the oil-cup is exposed to internal pressure, as iu its application to a steam chest, a screw cap may be substituted for this stopper; that, however, may be advantageously employed in oil-cups for journal-boxes and many other purposes.

The stem B forms a palt ot' or extension from the reservoir, and is of valvular construction, so that on turning the reservoir it is turned with the latter, and

-made to open or close, or adjust the flow of oil'from the reservoir. To this end said stem is made with a longitudinal passage throughit, in communication with the oil in thereservoir, and terminating belowin a side oritice ororilices, f, arranged to communicate with an enlarged opening, g, immediately above the seat h in the base-plug E, which seat it is preferred to make of conical form, to receive within it av aperedv and valvular termination to the stem for opening and closing the discharge oritice through thebase-plng E, that carries the oil-cup and its attached stern, and that may be providedwith a stuiing-box and gland F, to prevent outside leakage around the stem;

0u the stem B, where it passes through the upper portion of the base-plug, is out a reverse screw-thread, i, litting a female thread in the plug, so that on turning the reservoir, as in the act of taking oft the stopper or screw-cap, as :the case may be,tl1e valvular stem B is closed against the seat h; and on turning thereservoir in the opposite direction is opened to establish ow. This is import-ant in the application of au oil-cup exposed to interna-l pressure, as ona steam chest, for instance, inasmuch as in taking oli` the cap to renew thesnpply of lubricating material to the cup, the egress of steam is by such means automatically sluit olf.

What is here claimed, and desired to be secured by Letters Patent, iS-' l. The combination and arrangement of the hollow screw-clamp C', having an overlapping4 projection or collar, a, on or near its upper end, with the reservoir A and stem B, substantially as specified.

2. The stopper D, 'formed of a cork, (l, screw pin j; provided with a lower head and rigid cap e, arranged in relation to each other, essentially as shown and de,- scribed.

3. rlhe stem B, constructed to operate as a valve, when turned with the reservoir A, as specified.

4. The construction, substantially as shown and described, of the valvular' stem B of the reservoir A, with a longitudinal passage down it, and side 'orifices fj, and with a reverse screw-thread, i, on it, for operation in relation to the cap 'or stopper of the reservoinas TIMOTHY HOLLAND.

specified,

Witnesses FRED. Harms, B. E. RABEAU. 

